Write
You can make a "transaction" interacting with a Smart Contract when you **need to update some state ** in the contract.
Import necessary classes from the Web3j and kaia libraries(web3j-ext
).
Connect to the kaia blockchain using Web3j and specify the URL
Create KlayCredentials using the private key
Define smart contract address to interact with
Define gas price and gas limit for contract transactions
Create a gas provider with static gas price and gas limit
Load the contract using contact address, Web3j instance, credentials, and gas provider. You can read and write the contract through this instance
Get the current number stored in the contract before writing
Increment the number stored in the contract by calling counter.increment().send()
Get the updated number stored in the contract after writing